Home / 803,790.56-1,205,685.83-271,685.25

Finding the Fourth Proportional to 803,790.56, 1,205,685.83 and 271,685.25

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Solution

The fourth proportional to 803,790.56, 1,205,685.83 and 271,685.25 is: 407,527.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,790.56 : 1,205,685.83 = 271,685.25 : x
  2. Step 2: Convert to fraction form
    803,790.56/1,205,685.83 = 271,685.25/x
  3. Step 3: Cross multiply
    803,790.56x = 1,205,685.83 × 271,685.25
  4. Step 4: Simplify right side
    803,790.56x = 327,567,056,824.22
  5. Step 5: Solve for x
    x = 327,567,056,824.22/803,790.56
  6. Step 6: Final answer
    x = 407,527.87

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.